Improvement in adjustable bevels



- eeen eine am effin,

WILLARD C. EIlIlIS, 0F SPRINGFIELD, MASSACHUSETTS, ASSIGNOR OF vONE- HALF HIS RIGHT TO RUFUS A. RUSSELL, 0F SAME PLACE.

Letters Patent No. 112,793, dated March 21, 1871.

IMPROVEMENT IN AIJJUS'TABLE BEV'ELS:

The Schedule referred to in these Letters Patent and making paxtof the same.

To all whom it may concern.- 1

Be it known that I, WILLARD C. ELLIS, of Springeld, in the county of Hampden, in the State of Massachusetts, have invented a new and useful Improvement in Bevels.

' The nature of my invention consists in an arrangement of a caxn-lever, screw, and nut, combined furthe purpose of securing the bea-m and blade of the bevel iirmly together at any angle desired.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation, reference being had to the annexed drawing making a part of this specification, in which- Figure 1 is aperspective view;

Figure 2 is a side View; and

Figure 3, a top view of the different parts of my invention.

The camlever c is attached to the screw dgby a pin passing through the top, forming a hinge, ou which it vibrates up and down.

The screw d is made of suiicent length to pass through the beam and blade of the bevel, andv attached'to its lower end is the nut e, by which the length of the screw d is so adjusted that the cam c may perform -its proper functions.

I make a recess on the upper side of the beam to receive the cam-lever c even with its surface when pressed down, and the lower side of beam is counterbored so as to receive the nut e flush with its lower surface.

' Operation.

Raise the'cam-lever o to the perpendicular, which 'relieves the, pressure from the blade. Set your bevel at the angle desired; then bring the cam-lever c hack to its place, when, it' the regulating or adjusting-nut e In combination with the beam and blade of a. bevel,

the device for adjusting the same,.consisting of the nnte, screw d, and recessed cam-lever o, the 'parts`be7 ing constructed and arranged substantially as shown.

WILLARD C. ELLIS.

Witnesses:

C. B. WELLS, J. H. TAYLOR.' 

